<div id="challenge-sidebar" class="sidebar">
    <ul class="list-of-challenges">
        <h3>Retos</h3>
        {{#each challenges}}
        <li>
            <a id="{{ this.[0] }}" data-id="{{ @index }}" href="{{ this.[0] }}.html"
               class="challenge-item{{#if this.[2]}} current{{/if }}">
                <div class="current-arrow">▶️</div>
                {{ this.[1] }}
            </a>
        </li>
        {{/each}}
    </ul>

</div>
